Scuba Expert Witnesses

Boca Raton, Florida

Neurology, Sleep Medicine - Neurology Educator, Hyperbaric and Diving Medicine, Decompression Sickness, Arterial Gas Embolism, Diving Injury, Decompression Illness, Dysbaric Osteonecrosis, Undersea Medicine, Hyperbaric Oxygen, Diving Accidents, Traumatic Brain Injury TBI, Concussion, SCUBA, barotrauma, Maritime Injury

National Award-Winning Neurology Educator. Double Board-Certified in Neurology and Sleep Medicine. Fellowship Trained in Hyperbaric and Diving Medicine. Dr. Diana Barratt is a neurology educator. She directed a neurosciences course for second-year medical students and a neurology clerkship for third-year medical students. Over the course of 10 years, she trained over 800 medical students. She went on to direct a neurology residency program and received awards for teaching and innovation. Her awards include the American Academy of Neurology Clerkship Director Teaching Award, the American Academy of Neurology Clerkship Director Innovation Award, the American Board of Psychiatry and Neurology Faculty Innovation Award, and the Association of American Medical College’s MedEdPORTAL Editor’s Choice Special Distinction for an EEG and Sleep publication. She serves as a peer-reviewer and committee member at the national level. Dr. Barratt earned a BS in engineering and a Doctor of Medici...

Jefferson City , Missouri

Law Enf & Criminal Justice, Police Practices & Procedures - Use of Force, Scuba, Firearms, Evidence, Less Lethal, Underwater Recovery, Interview, PADI, Interrogation, Investigations, Jail, Dive Team, Prisoners, Drug Investigations, Pepper Spray, Narcotics, Taser, K-9, Bean Bag, Canine

With over 26 years of extensive experience in law enforcement, Harold C. Heitman brings unparalleled expertise to the courtroom. Having served as an elected sheriff for 16 years and held various roles including park ranger, jailer, corporal, sergeant, detective, and police chief, he currently provides contract services for the United States Marshal's Office. As a Senior Board Member for the Lake Area Narcotics Enforcement Group for nearly two decades, Harold is a trained Major Case Squad Investigator with specialized training from the FBI and other prestigious organizations. His diverse experience spans a wide range of cases, including financial crimes, domestic violence, and homicide. Additionally, he is a former police K-9 handler. Harold holds a degree in criminal justice and is a licensed generalist and specialty instructor for the Missouri Department of Public Safety. He shares his knowledge as a lead instructor at the police academy in Jefferson City, specializing in firearm...

Durham, North Carolina

Biomechanics, Blasting and Explosives - injury biomechanics, blast trauma, explosives, undersea medicine, hyperbaric physiology, ballistic trauma, extreme environments, trauma, diving, scuba, submersible, submarine, outer space, hypoxia, breathing system design, traumatic brain injury, TBI, military history, medical history, underwater

My specialties lie in the unique challenges and physiology of injurious environments, especially underwater, certain aspects of outer space, and from exposure to physically traumatic events such as explosions. I began my career working as a civilian mechanical engineer for the US Navy, where I specialized in the design, function testing, and safety testing of underwater equipment and breathing systems intended for use by military personnel, and I was both the project engineer and project manager for the first approval effort for a new military underwater breathing system to be successful since the 1970s. Concurrent with part of my employment with the navy, I earned a doctorate degree in biomedical engineering from Duke University, specializing in injury biomechanics, which is the application of the principles of engineering to determine the injury mechanisms and safe limits during events when human beings are at risk of injury or death. My goal for my career is safety and prevention...